4. The crabs couldn’t climb out of the mesh basket, because_______.
A、A. the basket was covered by a lid
B、B. the writer forced them to climb back to the basket
C、C. other crabs would pull those crabs back to the basket
D、D. the basket is too slippery
A、A. the basket was covered by a lid
B、B. the writer forced them to climb back to the basket
C、C. other crabs would pull those crabs back to the basket
D、D. the basket is too slippery